There are many, many bags that will fit 2 bodies and with several larger lenses. However, one consideration rarely talked about is the depth of the bag, not its width/height dimensions. A 1D series body with an L bracket is at least 6.25 X 6.25 " in width X height, and many popular camera bags are not 6.25" deep. Even worse, many large primes (ie 400 f2.8) have very large diameter hoods on the order of 7". Very few camera bags are 7" deep. Of course you can stuff a smaller bag with a 7" high lens, but this puts the lens/hood in a much more vulnerable spot, should it be sandwiched under another heavy object. For sure another negative for the thinner bag will be that the zipper will be stressed when closing the bag, and the cover zippers are always the part that fail first.
Mike K

True!
Well, i have ThinkTank bag, but it is very tight and i feel the bag will break or crack by the time i keep squeezing the lenses inside and the bodies too, also it is not a hard case, in sports fields i see almost all the shooters using hard cases, only those with 1 body and 1 average lens using backpack, so i want to go with hard case as well, it will save me also carrying a small chair, so i can sit on that hard case bag.

@ Tareq - What Think Tank Bag are you using, and what are you trying to pack into it? None of our bags will crack, at least not by loading. There is some ABS that could potentially crack if it were run over by a car I suppose, but it would never crack from packing or hard use. Your gear will break first from being overly compressed if you're worried the bag is going to fail.

Let me know if you need help with this. You can email me (just put it to my attention) at cs@thinktankphoto.com.

Our rolling camera bags aren't soft, but they're not hard cases that are designed to be thrown into a river while hitting a rock or two on the way to the water. They can certainly be gate-checked, stacked, jumped on, but I still would never recommend one of our rolling camera cases for someone who specifically needs a HARD hard case.

I have Think Tank Airport Security 2.0 bag, but honestly speaking, i will use it only if i travel or don't shoot sports, because in shooting sports i prefer to go with a hard case bag for some reasons, if Think Tank has a hard case bags that i can use to fit my sports shooting gear that will be a great news for me.